来自全球的研究人员通过分析483个热带树木年轮序列，首次系统评估了1930年以来干旱对热带森林茎生长的长期影响。研究发现，在最干旱的年份中，茎生长仅出现2.5%（95%CI:2.2-2.7%）的微弱下降，且这种下降通常不持续到干旱年后。值得注意的是，裸子植物（gymnosperms）比被子植物（angiosperms）更易受旱季干旱影响，而雨季干旱对后者影响更大。该研究揭示了热带森林碳汇功能对历史 ...

This film explores gymnosperms, a class of non-flowering seed plants, primarily represented by conifers in North America. It discusses their unique reproductive processes, including the production ...

Gymnosperms are one of the most threatened groups of living organisms, with one study citing that 40% of the species are at high risk of extinction.

Firstly, flowering plants began to replace gymnosperms – plants whose seeds are not enclosed in a protective case – such as conifers, which were dominant at the time. Secondly, the supercontinent ...

On new plants from the Erian and carboniferous, and on the characters and affinities of palaeozoic gymnosperms by Dawson, John William, Sir, 1820-1899 Publication date 1890 Topics Paleobotany -- ...

With the rapid advancement of Next-Generation Sequencing (NGS) technologies, researchers have gained access to an ever-increasing amount of biological genome data, including many ultra-large genomes ...

Gymnosperm species of cold, high-altitude northwestern Himalayas are predicted to decline as their habitats reduce in the light of climate change impacts. Slow-growing gymnosperms have a relatively ...

Gymnosperms (Gymnospermae) are a group of seed-bearing plants with ovules borne on the edge or blade of an open sporophyll, the sporophylls usually arranged in cone-like structures. The other ...

Insect pollination is a decisive process for the survival and evolution of angiosperm (flowering) plants and, to a lesser extent, gymnosperms (without visible flower or fruit). There is a growing ...

Application of the method to processed wood samples demonstrated that these differences can be used to provide support for enforcing trade laws by accurately identifying the source of finished wood ...